Research Topics
| Matthew W JohnsonSummaryAffiliation: Johns Hopkins University Country: USA Publications
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Detail Information
Publications
Substitutes for tobacco smoking: a behavioral economic analysis of nicotine gum, denicotinized cigarettes, and nicotine-containing cigarettesMatthew W Johnson
Department of Psychiatry, University of Vermont, 38 Fletcher Place, Burlington, VT 05401 1419, USA
Drug Alcohol Depend 74:253-64. 2004..Furthermore, these findings indicate that alternative reinforcement would be most effective in smoking cessation treatment when combined with high prices for cigarettes...
An efficient operant choice procedure for assessing delay discounting in humans: initial validation in cocaine-dependent and control individualsMatthew W Johnson
Behavioral Pharmacology Research Unit, Department of Psychiatry and Behavioral Sciences, Johns Hopkins University School of Medicine, 5510 Nathan Shock Drive, Baltimore, MD 21224 6823, USA
Exp Clin Psychopharmacol 20:191-204. 2012..The QDOT is an efficient operant human delay-discounting task that may be useful in a variety of experimental settings...- Psilocybin dose-dependently causes delayed, transient headaches in healthy volunteersMatthew W Johnson
Johns Hopkins University School of Medicine, Department of Psychiatry and Behavioral Sciences, Behavioral Biology Research Center, Baltimore, MD 21224 6823, USA
Drug Alcohol Depend 123:132-40. 2012..Although psilocybin is structurally related to migraine medications, and case studies suggest that psilocybin may be efficacious in treatment of cluster headache, little is known about the relationship between psilocybin and headache... - The Sexual Discounting Task: HIV risk behavior and the discounting of delayed sexual rewards in cocaine dependenceMatthew W Johnson
Behavioral Pharmacology Research Unit, Department of Psychiatry and Behavioral Sciences, Johns Hopkins University School of Medicine, Baltimore, MD 21224 6823, USA
Drug Alcohol Depend 123:15-21. 2012..Cocaine dependence is associated with high rates of sexual risk behavior and HIV infection. However, little is known about the responsible mechanism(s)... - Human psychopharmacology and dose-effects of salvinorin A, a kappa opioid agonist hallucinogen present in the plant Salvia divinorumMatthew W Johnson
Department of Psychiatry and Behavioral Sciences, Johns Hopkins University School of Medicine, Baltimore, MD 21224 6823, USA
Drug Alcohol Depend 115:150-5. 2011..Under these prepared and supportive conditions, salvinorin A occasioned a unique profile of subjective effects having similarities to classic hallucinogens, including mystical-type effects... - Effects of oral caffeine pretreatment on response to intravenous nicotine and cocaineMatthew W Johnson
Department of Psychiatry and Behavioral Sciences, Johns Hopkins University School of Medicine, Baltimore, MD 21224 6823, USA
Exp Clin Psychopharmacol 18:305-15. 2010..In contrast to the previous research using chronic caffeine maintenance, these data suggest that infrequent acute caffeine administration may attenuate nicotine effects... - An algorithm for identifying nonsystematic delay-discounting dataMatthew W Johnson
Behavioral Pharmacology Research Unit, John Hopkins University School of Medicine, Baltimore, MD 21224 6823, USA
Exp Clin Psychopharmacol 16:264-74. 2008..The algorithm may be used in empirical investigations to improve discounting methodology, and may be used to identify outliers to be removed from analyses... - Moderate drug use and delay discounting: a comparison of heavy, light, and never smokersMatthew W Johnson
Behavioral Pharmacology Research Unit, Johns Hopkins University School of Medicine, Baltimore, MD 21224 6823, USA
Exp Clin Psychopharmacol 15:187-94. 2007..These data suggest that even moderate levels of drug use may be associated with high delay discounting levels... - Delay discounting in current and former marijuana-dependent individualsMatthew W Johnson
Department of Psychiatry and Behavioral Sciences, Johns Hopkins University School of Medicine, 5510 Nathan Shock Drive, Baltimore, MD 21224 6823, USA
Exp Clin Psychopharmacol 18:99-107. 2010..Results suggest that current marijuana dependence may be associated with a trend toward increased delay discounting, but this effect size appears to be smaller for marijuana than for previously examined drugs... - Replacing relative reinforcing efficacy with behavioral economic demand curvesMatthew W Johnson
University of Vermont, USA
J Exp Anal Behav 85:73-93. 2006..The demand curve analysis illustrates why concordance between traditional measures is expected under some experimental conditions but not others... 
High doses of dextromethorphan, an NMDA antagonist, produce effects similar to classic hallucinogensCHAD J REISSIG
Department of Psychiatry and Behavioral Sciences, Johns Hopkins University School of Medicine, 5510 Nathan Shock Drive, Baltimore, MD 21224 6823, USA
Psychopharmacology (Berl) 223:1-15. 2012..Although reports of dextromethorphan (DXM) abuse have increased recently, few studies have examined the effects of high doses of DXM...- Mystical experiences occasioned by the hallucinogen psilocybin lead to increases in the personality domain of opennessKatherine A MacLean
Department of Psychiatry and Behavioral Sciences, Johns Hopkins University School of Medicine, Baltimore, MD, USA
J Psychopharmacol 25:1453-61. 2011..The findings suggest a specific role for psilocybin and mystical-type experiences in adult personality change... - Ramelteon: a novel hypnotic lacking abuse liability and sedative adverse effectsMatthew W Johnson
Department of Psychiatry and Behavioral Sciences, The Johns Hopkins University School of Medicine, Baltimore, MD 21224, USA
Arch Gen Psychiatry 63:1149-57. 2006.... - Dose-related effects of salvinorin A in humans: dissociative, hallucinogenic, and memory effectsKatherine A MacLean
Behavioral Pharmacology Research Unit, Department of Psychiatry and Behavioral Sciences, Johns Hopkins University School of Medicine, 5510 Nathan Shock Drive, Baltimore, MD 21224 6823, USA
Psychopharmacology (Berl) 226:381-92. 2013..Salvinorin A is a kappa opioid agonist and the principal psychoactive constituent of the plant Salvia divinorum, which has increased in popularity as a recreational drug over the past decade. Few human studies have examined salvinorin A... - Decision-making in state lotteries: half now or all of it later?Forest Baker
University of Vermont, Burlington, Vermont, USA
Psychon Bull Rev 10:965-70. 2003..These findings suggest that real-world choices involving large sums of money may be subject to diminishing marginal utility and probability and delay discounting... - Psilocybin occasioned mystical-type experiences: immediate and persisting dose-related effectsRoland R Griffiths
Department of Psychiatry and Behavioral Sciences, Johns Hopkins University School of Medicine, 5510 Nathan Shock Drive, Baltimore, MD 21224 6823, USA
Psychopharmacology (Berl) 218:649-65. 2011..This dose-effect study extends previous observations showing that psilocybin can occasion mystical-type experiences having persisting positive effects on attitudes, mood, and behavior... - Relative abuse liability of hypnotic drugs: a conceptual framework and algorithm for differentiating among compoundsRoland R Griffiths
Department of Psychiatry, Johns Hopkins University School of Medicine, Baltimore, MD 21224, USA
J Clin Psychiatry 66:31-41. 2005.... - Delay discounting in currently using and currently abstinent cocaine-dependent outpatients and non-drug-using matched controlsSarah H Heil
Department of Psychiatry, University of Vermont, USA
Addict Behav 31:1290-4. 2006..These data replicate previous work in cocaine-dependent and other substance abusers compared to non-drug-using controls and suggest that a longer period of abstinence may be required to modify discounting in this population... - Delay discounting in current and never-before cigarette smokers: similarities and differences across commodity, sign, and magnitudeForest Baker
Department of Psychiatry, University of Vermont, USA
J Abnorm Psychol 112:382-92. 2003..Current smokers' delay discount rates for monetary outcomes, however, were higher than never-before smokers across all magnitudes and both signs. This trend was also found for delayed health outcomes, but failed to reach significance... - Relationship between cooperation in an iterated prisoner's dilemma game and the discounting of hypothetical outcomesRichard Yi
University of Vermont, Burlington, Vermont, USA
Learn Behav 33:324-36. 2005..Correlations between rate of probability-discounting and cooperation rate in a repeated prisoner's dilemma game versus neither a tit-for-tat nor a random strategy were significant... - Comparative abuse liability of GHB and ethanol in humansMatthew W Johnson
Behavioral Pharmacology Research Unit, Department of Psychiatry and Behavioral Sciences
Exp Clin Psychopharmacol 21:112-23. 2013..g., headache). (PsycINFO Database Record (c) 2013 APA, all rights reserved)...